Allied Construction Products, LLC www.alliedcp.com
SOM576701_14jan
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13.0 Troubleshooting Guide
CAUTION
Only qualified personnel, having knowledge of the
machine’s systems, proper test equipment and
tools should attempt adjustments and repairs.
This guide identifies several commonly encountered
conditions and the recommended course of action.
For conditions other than these, contact the Allied
Technical Service Department
Condition Possible Cause Corrective Action
Does not start
Restriction in pressure or return
line
Verify shut off valves are open. Check if hose has
collapsed
Pressure and return lines are
crossed
Verify supply line is connected to port marked “IN” and
return line to “OUT”
Piston in brake
Piston must be forced out of brake. Apply contact
pressure against the tool until it pushes up piston
Incorrect breaker tool installed Verify breaker tool is correct
Insufficient oil pressure Refer to section “Operating Pressure Too Low”
Return line pressure too high Refer to section “Return Line Pressure Too High”
Carrier hydraulic circuit leaks
Locate source of bypass – Adjust, repair or replace
faulty components
Control valve [Carrier]
misadjusted or malfunction
Incorrect working mode. Troubleshoot valve for
mechanical, pilot circuit, or electrical fault
AutoLube reservoir is empty -
power interrupted to valve
Fill Auto-lube reservoir
Irregular Start /
Erratic Operation
Breaker tool is binding
Maintain right angle to work surface. Review operating
technique Section 6.
Check breaker tool is receiving sufficient lubrication.
Check operation of AutoLube. Use Chisel Paste
Breaker tool / bushings are worn
Breaker tool loosing contact
with material
Use boom, arm and bucket cylinder to follow breaker
as tool penetrates material. Review operating
technique Section 6.
Return line pressure too high Refer to section “Return Line Pressure Too High”
Operating flow or pressure is
too low
Refer to section “Operating Pressure Too Low”
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